Tube-forming machine



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- 1,469,,4 F. M. CASE A TUBE FORMING MACHINE Filed Dec. so 1921 9Sheets-Sheet 1 F. M. CASE TUBE FORMING MACHINE Oci. 2, 1923. 1,469,584

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' F. M. CASE TUBE FORMING MACHINE Filed Dec. 30 1921 9 Sheets-Sheet 5AMTHHH HHHHHH- Q @NNN @ci:. 2 1923. I I 1,459,584

I F. M, CASE TUBE FORMING MACHINE 9 Sheets-Sheet 4 Filed Dec. 50 11,469,584 F. M. CASE I TUBE FORMING MACHINE 9 Shets-Sheet 5 Oct. 2 1923,

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F. M. CASE TUBE FORMING MACHINE 9 Sheets-Sheet '7 Filed Dec. 39 1921 07?056% Case.

F. M. CASE TUBE FORMING MACHINE V 9 Sheets-Sheet 8 Filed Dec. 50 1921Get. 2, 1923.

F. CASE TUBE'FORMING MACHINE 1921 9 Sheets-Sheet 9 Filed Dec. 50

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0 Z 1 )IA Patented Get. 2, 1923.

crates stares r rENrorFlcE FRANCIS M. CASE, or CLEVELAND, OHIO, ASSIGNORTo FEDERAL roaontam com- JPANY, OF CAREY, OHIO, A CORPORATION OHIO.

TUBE-FORMING acrame.

Application filed December 30,1821. Serial No. 52 5,905.

To (dice/ 10m it may camera Be it known that I, FRANCIS M. CAsn, acitizen of the United States, residing at Cleveland. in the county ofCuyahoga and State of Ohio, have invented a certain new and usefulImprovement in Tube-Forming lvlachines, of which'the following is aspecification.

It has long been the custom to use, in connection with running electricwires through partitions, porcelain insulating tubes which are insertedinto apertures through noninsulating or combustible materials. throughwhich the wires may be passed, and kept out of contact with the materialof the partition.'

creases the rapidity of such tube formation,

automatically, although An imand which acts under the control of anoperator.

portant feature of myinvention is that it permits a tube forming machineto be built which is safe to operate and in which a. guard may be usedto prevent the operators hand from penetrating the danger Zone adjacentthe forming punches. I illustrate my invention more or lessdiagramrnatically in the following drawin s, wherein:

Figs. 1 and 2 together form a plan view of the tube forming machine withparts in section;

Figs.'3 and ltogether form tion with parts in section;

Fig. 5 is an end; 7 r

Fig. 6 is an end elevation of the pulley end; Y

Fig. 7 is a detailed sectional View of the rotary head and ejectors;

Fig. 8 is a section on the line 88 of Fig. 7;

Fig. 9 is a detail View of heading dies at the moment of head formation;

Fig. 10 is a view of the Geneva mechauisi a side eleva end elevation ofthe operating whereby the index shaftis moved intermittently; a 7 gVFigure 11. is a plan of the operating end showing the guard in place;

Fig. 12 is an end view of the operating end showing the guard in place.

Like parts are illustrated by like symbols throughout the drawings.

A is a supporting framework or housing,

the base A of which is bolted to a support ing surface by the bolts Aremovable doors A give access to the interior. The top .of

the base is surrounded by a flat ledge or rim 7 A on which rests thehousingB, secured by' the bolts B,'the sides of which housing areinclined as at B5 One with is perforated by the longitudinal opening Bthe purpose of which will laterv appear. Resting on ledges B at the topof the walls B? or otherwise suitably secured to or supported by .thehousing B is the upper housing C, comprising a fixed portion C, aportion C hinged as at C and with a hand hold C to lift it.

The drive shaft D, which has keyed to its outer end the driving pulleyD, is supported on the bearings D with the inner of which isassociated athrust ball bearing D Adjacent the pulley D is the-clutch mecha-' J nismD the details of which form no partof the )resent invention, but whichis operated t rough a rod D and linkD from the hand lever D pivoted asat D on the housing B and provided'with a handle.

Mounted on the shaft Disthe cam element 1 or'cylinder E about which arethe two separate cam channels E and E ,,the pur pose of which-willappear later.

Mounted on; the shaft D between the bear ings I) is apinion E engagingthe gear E on the stub shaft E whichrotatesin-.the

bearings On the shaft E is the pinion E r in mesh with the spur gear Emounted the said shaftE is keyed the circular stop, plate F, which iscut away as at F? to permit cooperation with the star wheel' F?mountedon the index shaft F Associated with the notched wheel is thecrank'F having at'its end the pin F supporting the roller F in the planeof the star wheel,

- on the stub shaft E. I To the outer end of which is adapted topenetrate the grooves F of the star Wheel. The star wheel is cut awaybetween the. arms to form circular surfaces F, of the same contour asthe stop plate.

the index head 1, comprising a hubl and the ribs 1 the bearing yolzes I,and the bearing apertures 1 s hflounted in the apertures are the mouldsi secured by set screws 1 whichIseat 'ingrooves T wliiclrare' internallyenlarged as at 1 and open within as atflvflhe indexhead is surrounded bya hearing I, fixed :within the ren'mvable rim 1.. 1 7

slid-ably mounted in the wheel H, in the aperture 'H therein, are theejector shafts K, the outer ends oit'which are free while the inner endsI are adapted to penetrate the. moulds "l and serve as end forming dies.The end which penetrates the mould is axially pert'ora est as at K whichper .i o'rati'on' terminates in the discharge opening' K -toward themiddle of the shaft. *cur'ed to each pa'ir oii shaitt's is a yoke orknock out shoe K? peripherally slotted as at K and locked position bythe bolt 7 To'guide theyokes l there is piovided the peripheral guidetrack which ism-- terrupted at the ejecting point, as at Hf,

as shown in Figure 8;

Mounted to slide in the hearings L is the main knock out shatt 'li,which is suitably ixerl against rotation. The 'end" L of this shaftisadjac'ent'the siioe K and is pro videL "with a knock out dog if adaptedpenetrate the slot K Mounted on the shaft L'a read'jacent adj .stablecollars L which engaged by t-he fork L projecting up 1 wardlyfrom thec'ariiageL which slides on th track L Pro ectn downwardly froin' saidcarriage is a cam stop or roller lfl'which penetrates the cam SlOtfEOnthe cahiineniber E Outwardly projecting from the housing- B is thebracket with an order upwardly turned elbow liftfwhich supports the c'ibl M which provided with theop- Posed tracks l 1M;

The upper track M consists in a mm'ahle' bearing plate, and isprovidedwvith 'a plurality of set screwshi s adjust the distan'cebetween it and M and to compensate for. Wear. Sliding between-tliesetracks is "rt-sliding punch head M fiir which are 'mounted the headingdies l /I L A and punch holders M. Mounted therein are the punchspindles M adapted to p etrate theapei tures oft-he moulds, T he headingdies 6 V 'are'cut'away as at T to term the mad oh the being secured tothe tracks M and li/P as for example by the' slotted lugs M adjacent theends of the strengthening ribs, and the bolts M The outer end may beopen as at M while the inner end is spaced slightly from the index headand may be cut away as :at M tte permit the moulds carried by the indexhead to be rotated therethrough.

into position opposite the punch he d.

The sliding punch head or carriage is actuated by thelever LT pivoted atN to the link i which is pivoted as atl l sliding punch head M The leverN is pivoted adjacent the interior of the base ofthe machine as at Npassing through the aperture B Mounted midway on this lever is thecamstop or roller N which penetrates the cam slot. E on the cam elementE. Overlying the bracket is the corrveyor- C? which may be of anysuitable form and is adapt-ed to convey away the finished tubes, as theyare ejected from the moulds.

It will be reali .ed that while I have shown an operative device, I donot limit myselfto the specific device shown and many changes may hemade in the number, shape, and disposition of parts without departingfrom the spirit of my invention. I r V f The use and operation of myinvention are as follows:

. V r, i The main shaft s constantly rotated,

through a drivin oulle from anvsuitable' c. i i power source andconstantly drives therein element. and the chain oi gears wnich controlsthe star wheel or Geneva movement.

circular segment of the star and holds itstationary.

The index shaft has keyed to Jtthe index head I in whiclrare removablymounted four pairs o't moulds. At any onemoment of rest bet vecn thesteps oi the Geneva motion, the

four pairs 0t moulds are disposed as follows Reading on Fig. 5,'the lefthand pair in position to receive a pair of blanks, manuallv inserted bythe operator, who slips in dried tubular blanks which have been somewhatmoistened to permit the'upsettin'g of to the When the cut out porejectinomechanism to the beach The upper pair are idle, giving theoperator a chance to catch up, if he for.

any reason fails to insert the blanks to fill in the moulds. When theyare in position in the left, the pair at the right side of the figureare in position to receive the thrust of the punch spindles, and headingelements/ The pair at the bottom are in position to dis. charge theirload upon an adjacent conveyor, and the completed blanks are kicked outby the ejecting mechanism. steps in. the step by step rotation of theGenevawheel and the index shaft controlled thereby, is sufficient topermit theinsertion of the blanks to permit the moulding and g performits proper reciprocation.

In line with each pair of moulds are pairs of ejector stops which areslidably mounted about the disc H, keyed to the shaft F The kick outstops. therefore, rotate in unison with the moulds and are always inline therewith. They serve the double purpose of moulding the rim of theinner end of the blank and of ejecting these blanks after the mouldingprocess is completed. Each kick out stop is hollow, its end beingchannelled about its periphery as shown in Fig. 7. This axial apertureterminates in a centrally located slot, through which bits and scraps ofthe blank may be ejected. Each pair of kick out steps is secured toayoke or knock-oiiit shoe which is peripherally slotted and controlledbya peripheral guide track adapted to penetrate the slot. This track isbroken away opposite the bottom posit-ion, shown in Fig. 8.

A pair of punch spindles and head forming dies is mounted to reciprocateinto and out of engagement with the moulds when in the right handposition as shown in a. Asshown in Fig. 9, the head forming mouldcontacts the blank containing mould and. forms an enlarged head, whilethe spindle M penetrates the blank and prevents itscollapse durin themoulding operation and reams out a. clear axial hole. Theend of the kickout stop positions the blank in the mould and forms its inner end, andserves as the discharge for the surplus material.

The wear 'on the machine and the shock to the blankis minimized by thefashioning spring, as shown in Fig. 9.

(inc cam slot on the main shaft controls the lever which actuates thepunch head carriage, and the main shaft rotates,'this lever.reciprocatcs, drawing the punch and header asz'ainst and into themoulds, and withdrawing them, during each interval of The knock outstops are norn'iallv kept in' constant relation to ,the blanks and serveas the back stop or rendfmould, but that pair of shafts which is in thebottom position, 'is free from the control of the peripheral track Thehalt between and is engaged by the knock out dog. The

other cam slot on the main shaft, controls the stop on the-slide whichcauses the reciprocation of the knockout shaft as each pair of mouldsreaches the lowest position inits rotation, the knock out yoke isengaged by the knock out stop and the pair of inoi'ilds engaging knockout stops moves for the operator can'stop it by throwing the stop lever,the end of which is -1n proximity with the moulds. As the materialreamed out of the blanks gathers, it may be removed through one of [theremovable doors in the housing. I v

7 Since the operator feeds the blanks into the device at a point removedfrom the puncln it is obvious that this type of machine is as safe assuch a machine can be made, but

a guard is provided which makes it absolutely impossiblefor the operatorto get his or her hand -between the punchh'eadand the index .i'nembcr.The

longitudinal axis of the machine makes such adisposition of the partseasier, as the additional advantage of easier feed, easier ejection, andeasier disposal of the ejected tubes.

1. In a tube heading machine aplu-rality of horizontal tube receivingmoulds, a

rotating element in which such moulds are mounted, a horizontal tubereceiving die' adapted to engage such moulds and means for rotating saidelement about a horizontal' axis to present said moulds successively tosaid die.

2. In a tube heading machine a plurality of horizontal tube receivingmoulds, a rotating element in which such moulds are mounted, ahorizontal. tube receiving die adapted to engage said moulds, means forrotating said element about a horizontal axis topresent said moulds, ard means forrotating. said element about a horizontal axis to presentsaid moulds successively to said die, in a step by step-rotation."

In a tube 'headingmachine a. plurality of horizontal tube" receiving 1moulds, a rotating element in which such moulds are mounted, ahorizontal tube receiving die adapted to engage such moulds and meansfor rotating said element about a horizontal axisto present saidmouldssuccessively to said die, and means for reciprocating said die into andout of operative engagement with said moulds.

t. In a tube heading machine-a plurality of horizontal tube receivingmoulds, a

rotating element in which such moulds are JIL mounted, a horizontal tubereceiving die adapted to engage such moulds and means for rotating saidelement about horizontal axis to present said moulds successivelyto-said die, in'a step by step rotation, and means for reciprocatingsaid die intoand out of operative engagement with said moulds. I

5. ln a tube heading machine plurality oi horizontal tube receivingmoulds, a rotating element. in which such; moulds are mounted, ahorizontal tube receiving die adapted to engage such moulds and meansfor rotating said element about a horizontal axis to present said mouldsto said die, and means for reciprocating said 'die into operativeengagement With said moulds,

said reciprocating means timed in relation to said rotation.

(3. In a tube heading machine a plurality oi horizontal. tube receivingmoulds, a rotating element in which such moulds are n'iounted, ahorizontal tube receiving die adapted to engage such i'noulds and meanstor rotating saidelement about a horizontal axis to present said mouldssuccessively to said die, in astep'by step rotation, and means forreciprocating saidd into and out of operative engagement with saidmoulds, said reciprocatingmeans timed in relation to said rotation.

'i". In a tube heading machine a plurality of horizontal tube receivingmoulds, a rotating element in which such moulds are mo mted, a dieadapted toeno'age such moulds and sue-ans for rotating said elen'ientabout a horizontal axis to present said moulds succes s vely to saiddie, and means for reciprocatsaid die into-and out of operativeengagement with said moulds, said reciprocating means actuated from thesame power source as said rotating means.

8. in a tube heading machine a plurality of horizontal tube receivingmoulds, a rotating element in which such moulds are mount ed, aluirizontal tub 7 receiving die adapted to engage such moults and meansfor rotating saiijlelen'ient about a horizontalaxis to present saidmouldssuccessively to said die. in a step by steprotation, and means forreciprocating said die into and out o'f operative engagement with said1moulds, said re-- ciprocatmg means actuated troin the same power;source as said rotating means.

Ina tube heading machine a plurality ofliorizontal tube receivingmoulds, a rotating element in which such moulds are mounted,horizontaltube receiving dies adapted to engage such moulds and meansfor rotating said element about a horizontal to. present said mouldssuccessively to said dies,

said moulds and dies arranged in a plurality ofseparate groups.

10. In a tube heading machine pluralit' of horizontal tube recelvin'gmoulds, a rotatin? element in which such moulds are mount-l ed,horizontal tube receiving dies adapted t0 engage said moulds andmeansror rotating 211d element aboutazhorizontal anis'to pro-- a step bystep rotation, said mouldsand 'l tics arranged in a plurality ofseparategrouos. 7

l. lutubeheading machine a plurality of horizontal tube receivingmoulds, a 'rotating element in whic" such moulds are mounted, horizon.al tube receiving dies adapted'to en"- gage such moulds and-means forrotating ing el ment in whichsaid moulds'are' mount-c ed, horizontaltubereceivingdies adapted to engage moulds and means for rotating saidelement ab ut a horizontal axis to present said moulds successively tosaid dies,

step by step rotation, and-meansfor reciprocating said dies into and outof operative engagement with said moulds, said moulds and dies arrangedin a pluralityof separate groups. p Q 13. in tube heading machine aplurality of horizontal tube receiving moulds, a rotating element inwhich such moulds are mounted, horizontal tube receiving dies adapted toengage such moulds and means for rotating said element about ahorizontal axis: to present aid moulds successively to said dies andmeans for reciprocating said dies into opera-- tive engageinent withsaid moulds, said reciprocating means timed in relation to said rotatingmeans, said moulds and dies arranged in a plurality of separate groups.

of horizontal tube receiving moulds, a rotating element in which suchmoulds are mount Jen-t said moulds ,ccessively to said dies, in

operative engagement with said llO ed, horizontal tube receiving dies:adapted to engage such moulds and means for rotating 7 said elementabout a horizontal axis to present said moulds successively to saiddies, in a step by step rotation, and means for reciprocating-said diesinto and out of operative en a ement with said moulds, said recipr'o weating means tuned in relation to said rotating means, said moulds anddies arranged in a plurality of separate groups.

15. In a tube heading machine a plurality of horizontal tube receivingmoulds, a rotate ing element in which such moulds are mount ed,horizontal tube receiving dies adapted to engage such moulds and meansfor rotating saidelement about a horizontal axis to pre sent saidmouldssuccessively to said dies, and means for reciprocating said dies intoand out of operative engagement with said" moulds, said reciprocatingmeans actuated from the same power source as said rotating means, saidmoulds and dies arranged in a plurality of separate groups.

16. In a tube heading machine a plurality of horizontal tube receivingmoulds, a rotating element in which such moulds are mounted, horizontaltube receiving dies adapted to engage such moulds and means forrotatingsaid element about a horizontal axis to present said mouldssuccessively to saiddies, in a step by step rotation, and means forreciprocating said dies into and out of operative engagement with saidmoulds, said reciprocating means actuated from the same -pow or sourceas said rotating means, said moulds and dies arranged in a plurality ofseparate groups.

17. In a tube heading machine a plurality of horizontal tube receivingmoulds, a rotating element in which such moulds are mounted, horizontaltube receiving dies adapted to engage such moulds and means for rotatingsaid element about a horizontal axis .to present said mouldssuccessively to said dies, said moulds and dies being arranged in pairs.

18. In a tube heading machine a plurality of horizontal tube receivingmoulds, a rotat ing element in which such ,moulds are mounted,horizontal tube receiving dies adaptedto engages-aid moulds and meansfor rotating said element about a horizontal axis to present said mouldssuccessively to said dies, in a step by step rotation, said moulds anddies being arranged in pairs.

19. In a tube heading machine a plurality of horizontal tube receivingmoulds, a rotating element in which such moulds are mounted, horizontaltube receiving dies adapted to engage such moulds and means for rotatingsaid element about a horizontal axis to present said moulds successivelyto said dies and means for reciprocating said dies into and out ofoperative engagement with said moulds, said moulds and dies beingarranged in pairs.

20. In a tube heading machine a plurality of horizontal tube receivingmoulds, a rotating element in which such moulds are mounted, horizontaltube receiving dies adapted to engage such moulds and means for rotatingsaid element about a horizontal axis to present said moulds successivelyto said dies in a step by step rotation, and means for reciprocatingsaid dies into and out of operative engagement with said moulds, saidmoulds and dies being arranged in pairs;

21'. In a tube heading machine a plurality of horizontal tube receivingmoulds, a rotating element in which such moulds are mounted, horizontaltube receiving dies adapted to engage such moulds and means for rotatingsaid element about a horizontal axis to present said mouldssuccessivelyto said dies, and means for reciprocating said dies into operativeengagement with said moulds, said reciprocating means imed in relationto said rotation, said moulds and dies being arranged in pairs. I

22. In a tube heading machine a plurality of horizontal tube receiving.moulds, a rotating element in which such moulds are mounted, horizontaltube receiving 'dies adapted to engage suchmoulds successively to saiddies in a stepby step rotation, and means for reciprocating said diesinto and out of operative engagement with said moulds, saidreciprocating means, timed in relation to said rotation, said moulds anddies, being arranged in pairs:

23. In a tube heading machine a plurality of horizontal tube receivingmoulds, a rotating element in which such moulds are mounted, horizontaltube receiving dies adapted to engage such moulds and means for rotatingsaid element about a horizontal axis to present said moulds successivelyto said dies and means for reciprocating said dies into and out ofoperative engagement with said moulds, said reciprocating means actuatedfrom the same power source as said rotating means, said moulds and diesbeing arranged in pairs.

'24. In a tube heading machine a pluralityof horizontal tube receivingmoulds, a rotating element in which such moulds are mount,- ed,horizontal tube receiving dies adapted to engage such moulds and meansfor rotating said element about a horizontal ax s to present said mouldssuccessively to sald di'esin a step by step rotation, and means forreciprocating said dies into and out of operative engagement with saidmoulds,

said reciprocating means actuated from the same power source as saidrotating means.

25. In a horizontal tube heading machine a plurality of open ended tubereceiving moulds, a rotating element in which they are mounted and meansfor rotating it about a horizontal ax1s, opposed dies adapted topenetrate each end of. said moulds.

26. In a horizontal tube heading machine a plurality of .openfended tubereceiving moulds, a rotating element in which they are mounted and meansfor rotating it about :a horizontal axis, opposed dies adapted topenetrate each end otsaid moulds, one of said diesadapted to revolvewith each of said moulds and other opposed dies being tfixcd in relationto said rotation, and means for reciprocating said latter dies into andout of operative engagement with said moulds.

28. In a tubeheading machine a plural ity of horizontal open ended tubereceiving moulds, a rotating element in which they are mounted andmeans'iior rotating it about afhori zontalaxis, opposed dies adapted to'cessively through a filling zone, tube forming zone, and a dischargingzone, by a step by step motlon each mould remaining in the filling Zone"for a longer period than in .f-either of the other zones.

31.*In a tube heading machine comprising a plurality of tube receivingmoulds, means for rotating said moulds, tube heading'dies adapted toengage said moulds, means for rotating said moulds successively througha fillingzonefa tube forming zone, and a discharging zone, the fillingzone adapted "to consume substantially as much time as the rest of thezones.

' 32. Ina tube heading machine comprising a plurality of tube receivingmoulds, means vfor rotating said moulds, tube heading dies adapted-toengage said moulds, means for rotating said'mo-ulds successively througha filling zone, a tube forming zone, and a discharging zone in a step bystep rotation, the filling zone adapted to consume substantially as muchtime as the rest of the zones.

33. In a tube heading machine a plurality o'f'open ended tube receivingmoulds, and a rotating element in which they are mounted,

anti a shaft adapted to rotate said element,

opposed dies adapted topenetrate each end of said moulds, one of saiddies adapted to .be aligned with and to rotate with each of 'sai'drmouds, and other opposed dies being fixed in relation to said rotation,andmeans for e ectin the finished tubes com arisin J a b "means" forreciprocating said former dies into and out of said moulds.

i In a tube forming machine a plurality "of horizontal open ended tubereceiving moulds, arranged in groups, a rotating ele- Qment' in whichthey are mounted, and means for giving it a step by step rotation abouta jliori zontal axis, opposed dies arranged in, groups, adapted topenetrate each end of said Irioul'ds, one of said dies adapted torevolve naeasse with each of said moulds and other opposed dies beingfixed. in relation to said revolution, and means for ejecting thefinished tubes by reciprocating said former dies into and out {of saidmoulds.

- In a tube forming machine a plurality of open ended tube receiving.moulds, arranged in groups, a rotating elementin 'w'h-ich they aremounted, and means 'for giving it a step by tep rotation, opposed diesarranged in groups, adapted to penetrate each end of said moulds, one ofsaid dies adapted to revolve with eachof said moulds,and other opposeddies'being fixed. in relation to said revolution, and means for ejectingthe finished tubes by reciprocating said former dies into and out ofsaid moulds, comprising yokes joining each roup of dies, and an ejectoradapted to contact said yokes to reciprocate. them and force said diesforward through themoulds.

36. In a tube forming machine a plurality of open ended tube receivingmoulds, arranged in groups, a rotating element in which they aremounted, and means for giving it a step by step rotation, opposed diesarranged in groups, adapted to penetrate each end of said moulds, one ofsaid dies adapted to revolve with each of said moulds, and otherdiesbeing-fixed in ,i'e-

lation to said revolution, and means for e ecting the finished tubes byreciprocating {said former dies into and out of said moulds,

, comprlsing yokes oining each group of dies,

an ejector adapted to'contact said yokes to reciprocate themfand forcesaid dies forward through the moulds, said yokes beingheld against[reciprocation throughout their revolution, but beingfreed at a point inline with the axis of the ejector.

37. In a tube forming machine a plurality of open ended tube receivingmio'ulds arrangedin groups, a rotating element in which they aremounted, and means for givingit' a stepby step rotation, opposed diesarranged ingroups, adapted to penetrate 'each'end offsaid moulds, one ofsaid dies adaptedto revolve with each of said moulds,"and other diesbeing fixed in relation to said revolution and means for ejecting thefinished tubes comprising reciprocating y olres joining each I group of'dies,an ejector adapted to contact said'yokes to reciprocate them andforce said dies for- \vard through the moulds, said yokes being heldagainst reciprocation through. their revolution by a peripheral track.

'38. In atube forming machine a plurality of openended tube receivingmoulds,

arrangedlin groups, a rotating element in which they are mounted, andmeans for giving itja step by'step rotation, opposed dies arranged ingroups adapted to pene i trate each end of said moulds, one of said diesadapted to revolve vvlth each of said mouds, other dies being fixed inrelation. to said revoution, and means for ejecting the finished tubescomprising reciprocating yokes joining each group of dies, an ejectoradapted to contact said yokes to reciprocate them and force said diesforward through trate each end of said moulds, one of said dies adaptedto revolve with each of said moulds, other dies being fixed in relationto said revolution, and means for ejecting the finished tubes comprisingreciprocating yokes joining each group of dies, an ejector adapted tocontact said yokes to reciprocate them and force said dies forwardthrough the moulds, said yokes being held against reciprocationthroughout their revolution, by a peripheral track, said track being cutaway in line with the axis of the ejector, the yokes being peripherallyslotted to engage said tracks.

40. In a tube forming machine a plurality of open ended tube receivingmoulds, arranged in groups, a rotating element in which they aremounted, and means for giving it a step by step revolution, opposed diesarranged in groups adapted to penetrate each end of said moulds, one ofsaid dies adapted to revolve with each of said moulds, other dies beingfixed in relation to said revolution, and means for ejecting thefinished tubes comprising reciprocating yokes joining each group ofdies, an ejector adapted to contact said yokes to reciprocate them andforce said dies forward through the moulds, said yokes being heldagainst reciprocation throughout their revolution, by a peripheraltrack, said yokes being peripherally slotted to engage said tracks, theejector element being normally in line with said track, and beingadapted to penetrate said slots. I 41. In a tube heading machine, aplurality of open ended tube forming moulds, a rotating element in whichthey are mounted, and a shaft adapted to rotate it, opposed dies adaptedto penetrate each end of each of the moulds. one of said dies alignedwith said shaft and adapted to rotate with each of said moulds, analigning support rotatingwith said shaft inwhich said dies are slidinglymounted intermediate their ends.

42. In a tube heading machine, a plurality of open ended tube formingmoulds, a rotating element in which they are mounted, and a shaftadapted to rotate it, opposed dies adapted to penetrate each end of eachof the moulds, one of said dies aligned with said saal't and adapted torotate with each of said moulds, an aligning support rotating with saidshaft, in which said die-s are slidingly mounted intermediate theirends, the outer end of such dies adapted to be supported and aligned bythe moulds.

43. In a tube forming machine, a plurality of open ended tube receivingmoulds, a rotating element in which they are mounted, and a shaftadapted .to rotate it, opposed dies adapted to penetrate each. end ofeach mould, one of said dies aligned with said shaft and adapted torevolve with each of said moulds, an aligning support rotating with saidshaft, in which said dies arc slidingly mounted intermediate their ends,the outer end of such dies adapted to be supported and aligned by themoulds, and means for reciprocating said dies within said moulds.

44. In a tube heading machine compris ing a plurality of moulds andmeans for rotating them in a step by step rotation, dies adapted to.penetrate and rotate with said moulds, opposed dies fixedagainstrotation and adapted to penetrate the opposite ends of the said moulds,and means for holding said rotating dies against axial movement duringsaid penetration, and

means for reciprocating said rotating dies after said penetration, toeject the completed 7 tube.

45. In a tube heading machine comprising a plurality of open endedmoulds, and means for rotating them, dies adapted to penetnate each endof said moulds, and control means for reciprocating said sets of diescomprising a unit cam element.

46. In a tube heading machine comprising a plurality of open endedmoulds and means for rotating them, dies adapted to penetrate each endof said moulds, and control means for reciprocating said sets of diescomprising a unit cam element, having a plurality of cam slots therein.

47.. In a tube forming machine compris ing a plurality of open endedmoulds, and means for revolving them dies adapted to penetrate each endof said moulds, and control means for reciprocating both sets of diescomprising a unit cam drum, a plurality ofcam slots therein, one set ofsaid dies being directly actuated by one of said slots.

- and a die reciprocating lever for the other set, being actuated by theother slot.

48. In a tube forming machine comprising a plurality of moulds and meansfor revolving them in'a step by step revolution,

dies adapted to penetrate and revolve with said moulds. opposed diesfixed against revolution and adapted to penetrate the oppo site ends otthe said moulds, and means for holding said' revolving dies againstaxial movement during said penetration, and means forreciprocatingsaidrevolving dies after said penetration, to eject the com pleted tube, andtiming and control means for reciprocatingboth sets 01 dies in rotation,comprising a unit cam drum.

49. a tube forming machine comprising a plurality of moulds anu meansfor revolving them :in a step by step revolution, dies adapted topenetrateand revolve with said. moulds,-o posed dies fixed againstrevolution and adapted to penetrate theopposite ends of the said moulds,and-means for holding said revolving dies against. axial movement duringsaid penetration, means for reciprocating said revolving dies after saidpenetration, to eject the completed tube, and timing'and control meansfor reciprocating both sets of dies in rotation, comprising a unit camdrum, having a'plu 'ality ot cam slot-s therein. 7

50. In a tube forming machine comprising a plurality of moulds nd meansfor re volving them in a step by step revolution, dies adapted topenetrate and revolve with said moulds,opposed dies fixedagainstrevolution and adapted topenetrate the opposite ends -of the moulds andmeans for holding said :revolving dies-against axial movement duringsaid penetration, means for reciprocating said revolving dies after saidpenetration, to eject the completed tube, and timing andcontrol meansfor reciproeating both sets of dies in rotation, comprising a unit camdrum, a plurality of cam slotstherein, an ejector element directlyactuated by one of said'slots and a 'die recip rocating lever actuatedby the other.

51. In a tube headingmaehine comprising an 0 en ended mould, and diesadapted to penetrate eitherend'ofsaid mould, a d e stop comprising atube in alignment with 7 said mould, a die stop comprising a tube-inalignment with said mould and adapted to penetrate therein, and adischargeopening through'the wall of said tube spaced away from saidmould.

52. A tube forming machine comprising tubular moulds and dies adapted topenetrate each end thereof, one or" said dies comprising a head formingelement and centrallv located punch spindle, the other comprising a tubehaving a central aperture and an outer discharge opening at a point removed from the mould.

53. A tube forming machine comprising tubular moulds and dies adapted topenetrate each endthereof, one of said dies com-- prising head'formingelement and centrally locatcdpunch spindle, the other comprising a tubehaving a single aperture and an outer discharge'opening at a pointremoved trom the mould, means adapted to hold the latter dies'stationaryduring the excursion of the former into the mould and actuating meansadaptedto force. the latter lorward through the mould atter thewithdrawal of the former. i

in a tube forming machine-a plurality of tube receiving-moulds, arotating element in which such moulds are mounted, and means forrotating it on a horizontal axis, a-tube forming die adapted to engagesuch moulds, and means for rotating said element to present said mouldssuccessively to said die. r

In a tube forming machines plurality of tube receiving moulds, arotating element in which such moulds are mounted and meansfor rotatingit on a: horizontal axis, a tube forming die adapted to engage saidmoulds and means for rotating said element to present said mouldssuccessively to said die, ina step by step rotation.

56; In a tube forming machine a plural 'ity of tube receivingmoulds,rotating element in which such moulds are mounted, and means forrotating it on a horizontal axis, a tube forming: die adapted to'engagesuclrmoulds and means for rotatingsaii'l element to present said mouldssuccessively to said die. and means for reciprocating said die into andout of operative engagement with said moulds.

v 57. In a tube forming machine a plurality of tube receiving moulds, arotating ele ment in which such moulds are mounted, and means forrotating it on a horizontal axis, a tube'forming die adapted to ensuchmoulds and means for rotating said element to present said mouldssuccessivelyto'said die, in a step-by step rotation, and means forreciprocating said die intoand out ofoperative engagement with saidmoulds.

58. "In a tube forming'machine a plurality of tube receiving moulds,a'rotating'element in which such moulds are mounted, a tii'be' t'ormingdie adapted to engage such moulds andmeans for rotating said element topresent said moulds to said die, and means for reciprocatingsaid dieinto operativc engagement with said moulds,'said reciprocating meanstimed in relation to said rotation.

59. In a tube forming machine a plurality ofopen ended tube receivingmoulds, a rotating element in which they are mounted," and means forrotating it one horizontal axis, opposed dies adapted to penetrate eachend of said moulds. I I

60. In a tube heading machine a'plurality of open ended tube formingmoulds, a'rotating element in which they'aremounted,

and means for rotating it'on a horizontal axis, opposed dies adapted topenetrate each end of said moulds, one of said dies adapted torotatewith each of said moulds and other opposed dies being fixed inrelation to said rotation,

61. In a tube heading machine comprising a plurality of tube receivingmQuldS means for rotating said moulds about ahorlzontal axis, and tubeforming dies adapted to enzontal axis, tube forming dies adapted toengage said moulds, means forrotating said moulds successively through afilling-zone, a

tube forming zone, and a discharging zone in a step by step rotation.

63. In a tube heading machine comprising a plurality of tube receivingmoulds,

means for rotating said moulds about a hori zontal axis, tubeforming-dies adapted to en gage said moulds, means for rotating saidmoulds successively through a filling zone, a tube forming zone, and adischarging zone, the filling zone adapted to consume sub stantially asmuch time as the rest of the zones.

64. In a tube heading machine comprising a plurality of tube receivingmoulds,

means for rotating said moulds about a horizontal axis, tube formingdies'adapted to engage said moulds, means for rotating said mouldssuccessivelythrough a filling zone, a tube forming zone, and a discharing zone in a step by step rotation, the filing zone adapted to consumesubstantially as much time as the rest of the zones.

65. In a tube heading machine a plurality of open ended tube formingmoulds, and a rotating element in which they are mounted and means forrotating it on a horizontal axis, and a shaft adapted to rotate saidelement, opposed dies adapted to penetrate each end of said moulds, oneof'said dies adapted to be aligned with and to rotat with each of saidmoulds, and other opposed.

dies'being fixed in relation to said rotation,

and means for ejecting the finished tubes 66. In a tube heading machinea substantially* horizontally disposed mould and means for passing itthrough successive feeding, forming, and ejecting zones.

67. A tube heading machine comprising a substantially horizontallydisposed mould and means for rotating it about a horizontal axissuccessively through feeding, forming, and ejecting zones. I

68. In a tube heading machine a substantially horizontally disposedmould and means for passing it through successive feeding, forming, andejecting zones by a step by step motion. w

69. A tube heading machine comprising a substantially. horizontallydisposed mould and means for rotatingit about a horizontal axissuccessively through feeding, forming,

and ejecting zones by a step by step rotation.

, moulds are mounted, a tube' formingdi'e adapted to engage said" mouldsand means' for rotating said element. 71. In a tube heading ma of tubereceiving moulds, a substantiall horizontal rotating element in whichsuc1 mou-lds are mounted, a tube forming die adapted to engage saidmoulds and means for giving a step by step rotation to said element, therest period being substantially longer than the rotating period.

72. In a tube forming machine having a chine, a plurality V mould and adie adapted to be reciprocated toand from saidmould, means for'movingsaid mould into and out of oppositionto the path of reciprocation ofsaid die and a guard element adapted to entirely inclose the path ofreciprocation of said die.

Signed at Cleveland, county ot'Cuyahoga, and State of ber, 1921.

Ohio, this 21st dayof Decem- FRANCIS M. CASE.

